Web-printing device.



R. Q. PLASS.

WEB PRINTING DEVICE. APPLICATION FILED ocr. 2. 1917.

1,301,969., Patented Apr. 29, 1919.

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R. H. PLASS. WEB PRINTING DEVICE. APPLICATION FILED OCT. 2. I917.

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54; ATTORNEY R. H. PLASS. WEB PRINTING DEVICE. APPLICATION FILED OCT. 2.1917.

Patented Apr. 29,1919.

v I/I/VE/VTOR BY U/ m ATTORNEY mg NoRrus pzrsns 6a., Fuom- 11w %TE FAENTFFQEO ROBERT H. PLASS, OF UPPER MONTGLAIR, NEW JERSEY, ASSIGNOR TO THERIEGEL SACK COMPANY, OF NEW YORK, N. "521, A CORPORATION OF NEW JERSEY.

WEB-PRINTING DEVICE.

ll,3llll,969.

Specification of Letters Iatent.

Patented Apr. 29, 11919..

Application filed October 2, 1917. Serial No. 194,301.

To all whom it may concern:

Be it known that I, Bonner H. PLAss, a citizen of Germany, residing inthe city of Upper Montclair, county of Essex, and State of New Jersey,have invented certain new and useful Improvements in Web-PrintingDevices, of which the following is a full, clear, and exactspecification.

My invention relates to web printing devices and refers particularly toa device whereby impressions may be printed upon a continuous web atpredetermined distances from each other, irrespective of the diameter ofthe printing rollers.

One object of my invention is a device whereby printed impressions maybe made upon a web at predetermined distances from each other.

Another object of my invention is a device whereby printed impressionsmay be made upon a Web at distances irrespective of the diameter of theprinting roller.

Another object of my invention is a device in which a printing rollermay be employed to produce printed impressions upon a web at anypredetermined distance from. each other.

Another object of my invention is a web printing device which is capableof printing impressions at varying distances from each other.

These and other objects of the device of my invention will be evidentupon a consideration of my specification and claims.

In the generally employed methods of printing upon webs, the type orother printing means are aflixe'd'to the outer surface of a revolubleroller or cylinder, the web passing between said roller and a platen. Inthis manner the web receives a printed impression upon each revolutionof the roller, and hence the impressions are equally distant from eachother, the distance between them being represented by the circumferenceof the roller.

It is frequently desirous to print the impressions at a distance fromeach other greater than the circumference of the printing roller, thisrequirement being particularly important where the web is afterward cutinto desired lengths, as in the production of bags.

In the machines described above the distance between the printedimpressions is a .65 fixed one dependent upon the circumference of theprinting roller and hence a print ing roller of definite circumferencemust be employed in the printing of bags of each particular size inorder that the impressions may be uniformly printed upon all of thebags, and as all of the other component parts of the machine are inuniformity with the printing roller, a separate machine is necessary foruse uponeach class of work.

I overcome this serious difiiculty by presenting a machine, that willpermit impressions upon a web at any predetermined distance from eachother irrespective of the size of the printing roller, thus allowing theone machine to be used in the printing of bag-webbing for any desiredsize of bags.

The advantages of the device of my invention and its economicalproduction of web printing as regards labor, time, space and rapidity ofout-put are evident upon a consideration of my specification.

In a broad way my invention comprises a device wherebyany predeterminedlength of the web may be drawn past the printing roller during theneutral or non-printing period of the roller, thus allowing the printedimpressions to be separated from each other by a distance greater thanthe circumference of said roller.

In the accompanying drawings representing one form of the device of myinvention, similar parts are indicated by similar numerals.

Figure 1 is a side view of a device of my invention.

Fig. 2 is a front view in the direction of arrow 2 of Fig. 1.

Fig. 3 is a cross-section through the line 3 3 of Fig. 2.

Fig. 4: is a cross-section through the line 44 of Fig. 3.

Fig. 5 is an enlarged side view of the grippin device, shown grippingthe web.

Fig. 6 is a cross-section through the line 6-6 of Fig. 3.

In the particular form of the device of my invention, illustrated in theaccompanying drawings, the spur-gear 10 is fixedly attachedto the shaft11 and is connected to a source of revoluble power not shown. Thespur-gear 10 meshes with the spur-gear 12, fixedly attached to therevoluble shaft 13, carrying the roller 14 fixedly attached thereto. Thespur-gear 12 meshes with the spurgeel' l5, fixedly attached to therevoluble shaft 16 carrying the roller 17 fixedly attached thereto. Thespur-gear 15 meshes with the spur-gear 18 fixedly attached to therevoluble shaft 19, and with the spur-gear 21 fixedly attached to therevolu'ble shaft 22 carrying the fixedly attached roller 23. Thespur-gear 18 meshes with the spur-gear 24 fixedly attached to therevolubleshaft 25. carrying the fixedly attached roller 26.

The spur-gear 24 meshes with the spurgear 27 fixedly attached to therevoluble shaft 28 carrying the fixedly attached roller 29. An idler 30is fixedly attached to the revoluble shaft 31. Two rods 33, 33, carriedby brackets 34, 34, serve as a means for holding the web in a tautcondition as will be explained later. An idler 35 fixedly attached tothe revoluble shaft 36 is supported by the frames 37, 37. An idler 38fixedly attached to the revoluble shaft 39 is support ed by the frame40, 40. Supporting bars 41, 41 are fixedly attached to the frames 40,40and 37 37 by means of the brackets 42, 42. The spur-gear 1O meshes withthe spur-gear 43 fixedly attached to the revoluble shaft 44, whichcarries the spur-gear 43; the spurgears 43, 43 being meshed with thespurgears 45, 45 fixedly attached to the stubshafts 46, 46. Fixedlyattached to the shafts 46, 46 are the extension plates 47, 47 having theslots 48, 48. Revolubly carried by the extension plates 47, 47 andwithin the slots 48, 48 are the shafts 49, 49 to which are fixedlyattached the bars 50, 50. The bars 50, 50 are revolubly attached to theshaft 51, to which is fixedly attached the grip jaw 52 carrying therubber strip 75, the grip jaw 52 is integral with the members 53, 53which are slidable over the rods 41, 41. A gripping member comprises themember 54 carrying the grip jaw 55 and the trip 56 both being fixedlymounted upon the rock shaft 57. The grip jaws 52 and 55 are maintainedin a gripping position with respect to each other by means of the spring58. A pawl 59 is carried by the member 53, the pawl 59 having the offset60 to engage the gripping member 54 to hold it from engagement with thegrip jaw 52, and th stop extension 61. Attached to the frame 37 is aplate 62 having the slot 63, in which the trip-catch 64 is capable ofbeing fixed at varying positions within the slot 63.

Pivotally attached to the frame 40 at 65 is the rock arm 66, one end ofwhich carries the rev'oluble wheel 67 abutting upon and removable overthe arm 59, the other end of the rock arm 66 carrying the revolubleWheel 68 abutting upon and movable over the cam 69 which is fixedly.attached to the shaft 25. F ixedly attached to the rollers 23 and 29 arerespectively the impression or printing means 70 and 71. In the machineillustrated, which is a two impression machine, the ratio of the spurgear 45 to the spur gear 24 is 1 to 4, but it is evident that this ratiomay be changed to meetthe particular requirements.

The operation of the device is as follows The web 100 is placed infolded form upon the table 72 and passed through the device as indicatedin Fig. 1. The drive gear 10 is then revolved which imparts rev'olublemotion to the train of gears as described above and as indicated by thearrows upon the drawings. Motion of .the web through the device isaccomplished by any suitable pulling means, exterior of th device, suchmeans not being shown in the drawings. As the web passes between theprinting means 7 0 upon the roller 23 and the platen 17 it receives aprinted impression, it then passes between the printing means 71 uponthe roller 29 and the platen 26 receivin another printed impression. Thecam 69 1s so situated that when the two printing means 7 O and 71 haverevolved from contact with the web 100, thus leaving a space between theroller 23 and the platen 17 and the roller 29 and the platen 26, thewheel 68 will revolve upwardly thereon, forcing the roller 67downwardly, releasing the catch 59, the spring 58 causing the grips 5 2and 55 to seize the web, as shown in Fig. 5, which is then pulledrapidly downwardly and through the rollers 23 and 29 and the platens 17and 26 by means of the downward movement of the arms 50, 50. Thisdownward movement continues until the trip 56 strikes the trip catch 64,forcing the trip upwardly causing the grip 54 to be forced outwardly,the catch 59 dropping downwardly until the grip 54 is engaged with theinset 60, thus holding the grips 52 and 55 from engagement with eachother and allowing the free movement of the web therethrough. Thegripping members 52 and 55 will remain in disengagement with each other,allowing their movement upwardly and downwardly without gripping the webuntil the cam 69 has revolved into the position where it again raisesthe roller 68 of the rock arm 66. The length of the downward stroke maybe fixed by changing the length of the arms 50, 50 through the medium ofthe set screws 80, and by changing the position of the members 49, 49 inthe slots 48, 48. When the gripping means has been released from the weband the drag thereof has discontinued, the printing means 70 and 71 haverevolved in position for proper printing.

It is evident from the above that by means of my device the web may beprinted and then any predetermined amount of web may be withdrawn beforethe next printing impression, thus allowing the production of printedimpressions at distances from each other independent of the size of theprinting rollers.

I do not limit myself to the particular size, shape, number orarrangement of parts as shown and described, all of which may be variedwithout going beyond the scope of my invention as described and claimed.

What I claim is 1. In a web printing machine, in combination, arevoluble web printing means, means for revolving the printing means ata uniform speed during printing and non-printing periods and meanswhereby a continuously moving web will be gripped and an increasedamount thereof withdrawn between the periods of printing.

2. In a web printing machine, in combination, a revoluble web printingmeans, means forrevolving the printing means at a uniform speed duringprinting and non-printing periods, means whereby the printing means willproduce impressions upon a continuously moving web and gripping meanswhereby the distance between the impressions can be varied.

3. In a web printing machine, in combination, a revoluble cylinderhaving a printing surface upon a portion of its perimeter, means forrevolving the cylinder, and gripping means for accelerating the movementof a continuously moving web during nonprinting periods.

4. In a web printing machine, in combination, a revoluble cylinderhaving a printing surface upon a portion of its perimeter, means forrevolving the cylinder, and

gripping means whereby varying and predetermined lengths of acontinuously movating the movement of a continuously moving web duringnon-printing periods.

5. In a web printing machine, in combination, a revoluble cylinderhaving a printin surface upon a portion only of its perimeter, means forrevolving the cylinder, a revoluble cylindrical platen, means forrevolving the platen, and gripping means for accelerating the movementof a continuously moving web during non-printing periods.

6. In a Web printing machine, in combination, a revoluble cylinderhaving a printing surface upon a portion only of its perimeter, meansfor revolving the cylinder, a revoluble cylindrical platen, means forrevolving the platen, the printing cylinder and the platen being sosituated oircumferentially as to allow of a space between the surface ofthe cylinder and the surface of the platen, and gripping means forvarying the length of a continuously moving web drawn from between theprinting cylinder and the platen during non-printing periods.

7. In a web printing machine, in combination, a revoluble cylinderhaving a printing surface upon a portion only of its perimeter,

, means for revolving the cylinder, a revoluble cylindrical platen,means for revolving the platen, the printing cylinder and the platenbeing so situated circumferentially as to allow of a space between thesurface of the cylinder and the non-printing surface of the platen,means for gripping a continuously moving web synchronized with thenonprinting periods and means for moving the gripping means apredetermined distance acelerating the movement of the web and drawing apredetermined length of web from between the printing cylinder and theplaten during non-printing periods.

8. In a web printing machine, in combination, a revoluble cylinderhaving a printing surface upon a portion only of its perimeter, meansfor revolving the cylinder, a revoluble cylindrical platen, means forrevolving the platen, the printing cylinder and the platen being sosituated circumferentially as to allow of a space between the surface ofthe cylinder and the non-printing surface of the platen, means forgripping a continuously moving web synchronized with the nonprintingperiods,means for moving the grip ping means a predetermined distanceaccelerating the movement of the web during a non-printing period, meansfor releasing the gripping means and means for allowing the web to passfreely through the released gripping means until the next non-printingperiod.

Signed at Jersey City in the county of Hudson and State of New Jerseythis 27th day of September, 1917.

ROBERT H. PLASS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

